Wired 84g, wireless 87g (including packaging) 11*10.5*3 Box dimensions: 55*34*24.5cm Packing quantity: 100pcs This model of the computer displays 100 in English Large screen design, ultra-wide operating temperature range! High-brightness white light display, dual-line four-window display, packaged in a color box. Comes with a Chinese instruction manual. The speedometer uses a 2032 button battery Note: The vehicle that can be used requires a wheel diameter of 10.00CM-99.99CM (i.e., suitable for vehicles with 4inch~40inch wheels)